You can find the chip tuning file for your Mercedes-Benz GLS 2019 -> 400d 331hp vehicle on our site. These files are created especially for you and handed to you. All our Tuning files are extensively tested on Dynometer. The development of the tuning file for your Mercedes-Benz GLS 2019 -> 400d 331hp vehicle is the result of a special product by EcuPrime Engineers. In addition, we can increase the power of your vehicle from 331 HP to 380 HP, 700 Torque to 840 Torque.